Sorry but those gills have got to go. I also believe that the c frame has the camo breaking the shape as the trunk wouldn't be that short.

What I'm trying to say is that I hope that BMW won't make jap or merc looking cars with overdone contours and gills for rats to home in. It still going to be clean and sophisticated without being an eyesore.

Got to look past the details.. the over all the shape is an improvement from the current model.

Compare F30/F80 to E90 yes, Improve.

Compare to F32/E82 to E92 nope, I think current E92 look far better in this RENDER.

People are exciting about F30 new headlight but most of Line! still similar to E90.

To be fit for Series 4 (The NEW series), they need to do more. If they still use F30 headlight for Series 4 F32 or E82 then this is too lazy for BMW, it is like E46 coupe and sedan (minor different) and should call this 3 Coupe.
Even the E92 are more suitable for calling Series 4 since E90 and E92 doesn't share too much design (it stand apart, headlights are different shape at all and Taillight also base from different design).

Yes, This is how it should be S3 and S4

And see F30 to F32 RENDER!! if it is true as render then BMW is now LAZY.
Same light just cut the door out, Ehhh?!

And see Series 5 F10, it is a reviewer say "the same sausage, cut to a different length".